Honestly I am unsure. There seems to be evidence that raising SPR also raises your resistance to status effects of any level. But no one has conclusively investigated into the idea that higher level debuffs need more resistance, or how much resistance SPR gives in the first place. This would be something to test out.
Sorry no real updates on the guide for a while. I am just waiting for a stable version of the game to come out before I add anything else (and sort of tempted to move info to the wiki instead of updating pdf). Gotta work myself up to that though.